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A kind of electrorheological fluid with high conductivity and its preparation method

An electrorheological fluid, high conductivity technology, applied in the direction of lubricating composition, petroleum industry, etc., can solve the problems that cannot be widely used in industrial production, poor dispersion of solid particles, poor compatibility of insulating liquid, etc., to achieve strong application and improve Conductivity, effects of a wide range of materials

Active Publication Date: 2019-04-26
YUNNAN KEWEI LIQUID METAL VALLEY R & D CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the solid particles added to the current electrorheological fluid have poor dispersibility, poor compatibility with the insulating fluid, and the preparation process is complicated, so it cannot be widely used in industrial production

Method used

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  • A kind of electrorheological fluid with high conductivity and its preparation method
  • A kind of electrorheological fluid with high conductivity and its preparation method

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preparation example Construction

[0030] In order to avoid duplication, the raw materials used in this specific embodiment are first described in a unified manner as follows, and are not repeated in specific examples: figure 1 As shown, the high-conductivity electrorheological fluid of this embodiment is prepared by uniformly mixing liquid metal and in-situ synthesized electrorheological fluid as raw materials; the preparation method of the high-conductivity electrorheological fluid includes the following steps:

[0031] (1) The electrorheological fluid synthesized in situ is prepared by a conventional in situ synthesis method;

[0032] (2) liquid metal is prepared by a conventional method;

[0033] (3) Mix the liquid metal with the electrorheological fluid synthesized in situ evenly to obtain the product.

Embodiment 1

[0035] In the high-conductivity electrorheological fluid described in this embodiment, the liquid metal content is 10% by mass fraction, and the rest is electrorheological fluid synthesized in situ.

[0036] Among them, the material of the liquid metal is a gallium-indium binary alloy, the content of gallium is 90% by mass fraction, and the rest is indium; the electrorheological fluid synthesized in situ is mixed with titanium dioxide powder particles in dimethyl silicone oil, wherein titanium dioxide powder The content of body particles is 20% by mass fraction.

Embodiment 2

[0038] In the high-conductivity electrorheological fluid described in this embodiment, the liquid metal content is 15% by mass, and the rest is electrorheological fluid synthesized in situ.

[0039] Among them, the material of the liquid metal is a gallium-indium binary alloy, the content of gallium is 70% by mass, and the rest is indium; the electrorheological fluid synthesized in situ is mixed with barium titanate particles in paraffin oxide, wherein the barium titanate particles The content is 20% by mass fraction

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Abstract

The invention relates to the technical field of electrorheological fluid materials, in particular to high-conductivity electrorheological fluid and a preparing method thereof.Liquid metal and electrorheological fluid synthesized in situ serve as raw materials and are uniformly mixed to prepare the high-conductivity electrorheological fluid, good fluidity of the liquid metal is used for uniformly dispersing liquid metal particles into the electrorheological fluid synthesized in situ, and therefore conductivity of the electrorheological fluid is improved; as the liquid metal in the electrorheological fluid synthesized in situ is not effectively communicated, the prepared high-conductivity electrorheological fluid still keeps the insulation characteristic.The preparing method of the high-conductivity electrorheological fluid is simple, the materials are wide in source and easy to obtain, and applicability is high.

Description

technical field [0001] The invention relates to the technical field of electrorheological fluid materials, in particular to a high-conductivity electrorheological fluid and a preparation method thereof. Background technique [0002] Electrorheological Fluids, referred to as ER liquids or ER fluids, are prepared by dispersing solid particles with high conductivity, low conductivity and high dielectric constant in an insulating liquid with low dielectric constant, and are usually a suspension. Liquid-solid transition can occur under the action of electric field. When the applied electric field strength is much lower than a certain critical value, the electrorheological fluid is liquid; when the electric field strength is much higher than this critical value, it becomes solid; near the critical value of electric field strength, it becomes viscous and increases with the increase of electric field strength. Because the quality of electrorheological fluid has controlled changes,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/04C10N30/04C10N40/16
CPCC10M169/04C10M2201/05C10M2201/062C10M2201/08C10M2201/10C10M2205/123C10M2205/163C10M2217/045C10M2229/0415C10M2229/0515C10N2030/04C10N2030/60C10N2040/16
Inventor 路金蓉刘静
Owner YUNNAN KEWEI LIQUID METAL VALLEY R & D CO LTD